闲话少说直接上代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<div onmouseover="this.setCapture();" onmouseout="this.releaseCapture()">
<select onbeforeactivate="return false" name="phaseType" onfocus="this.blur()" >
<option value="">全部</option>
<option value="立项" selected>立项</option>
<option value="初设">初设</option>
</select>
</div>
</BODY>
</HTML>
可以通过外层套用div来实现